Demo

Design Engineer

Sonnax
Bellows Falls, VT Full Time
POSTED ON 8/4/2026
AVAILABLE BEFORE 9/2/2026
Sonnax Transmission Company

As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best.

Who We Are

Sonnax provides innovative transmission repair products for the automotive aftermarket and industrial sectors utilizing drivetrain components. Partnering with transmission rebuilders, our R&D teams identify failing OEM parts and design components to repair or enhance automatic transmissions, meeting a wide range of performance and warranty needs.

What You'll Do

This Design Engineer is responsible for product development and design with a strong emphasis on design for manufacturability. The successful candidate will be part of a cross functional team that designs, tests and reviews new drivetrain components for the automotive aftermarket. The Design Engineer will participate in continuous improvement of products and processes as well as activities focused on our business priorities of safety, quality, and delivery (timeliness).

  • Participates in a cross-functional team that designs, tests and reviews new products to ensure they meet the requirements of both the Business Case and Development Plan.
  • Analyzes product or equipment specifications and performance requirements to determine designs, which can be produced by existing manufacturing or processing facilities and methods.
  • Provides technical information concerning design, manufacturing or processing techniques, materials, properties, and process advantages and limitations which affect long range manufacturing planning.
  • Independently determine and select proper materials, heat treatments, coatings, tolerances and dimensioning requirements for design and manufacturing processes of product.
  • Has the basic understanding and knowledge in the use of Quality Assurance inspection equipment and reading of data and reports.
  • Confers with research personnel to clarify or resolve problems and develops design.
  • Performs or directs preparation of product design layouts and detailed drawing specifications. Will also perform CAD activities and will ensure drawing specifications are complete and in accordance with Sonnax engineering standards.
  • Ability to interpret and create detailed prints, and engineering drawings.
  • Compiles and analyzes design, test, and research data to establish performance standards for newly designed or modified product.
  • Analyzes test data and reports to determine if design meets functional and performance specifications.
  • Confers with research and other engineering personnel and prepares design modifications as required.
  • Applies methods and processes used to manufacture precision metal parts.
  • Operates required machinery and equipment in a safe manner. Follows established safety rules, and established tool and instrument control procedures.

What You'll Need

  • Bachelor of Science in Mechanical Engineering (BSME) or Mechanical Engineering Technology Bachelor of Science (METBS) or Bachelor of Science in Electromechanical Engineering (BSEME) and 1-3 years related work experience or internships.
  • Proficiency in 3D Solid Works and PDM Works.
  • Experience in Product Life Cycle Management System, Proficiency in MS Office suite with emphasis on Outlook, Word and Excel.
  • Experience with geometric dimensioning and tolerancing (GDT)
  • Knowledge or experience with gear and spline design, aluminum die castings, steel and aluminum forgings, formed metal stamping, plastic molded components, CNC machined components and other manufacturing processes are valued.
  • Knowledge of the mechanical properties of materials and processes such as heat treatment, cryogenic treatment and the effects on strength and durability are a plus.
  • Knowledge of automotive technology related to the drivetrain is helpful.
  • Knowledge of Quality Management Systems ISO9001, continuous improvement helpful.
  • Excellent communication and report writing skills, attention to detail, problem solving ability.
  • Ability to work well in a cross-functional team environment

Physical Requirements/Work Environment

Ability to wear required PPE for lab area, including safety shoes and eye protection.

Pay Range

69,088.00 - 103,632.00

We offer a comprehensive benefits package that may include medical, dental, vision, 401k matching, and more!

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law.

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class. If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to careers@marmon.com, and please be sure to include the title and the location of the position for which you are applying.

Salary.com Estimation for Design Engineer in Bellows Falls, VT
$104,919 to $118,503
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